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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13479) [branch-1.0] Master should not bind to region server ports
Date Wed, 15 Apr 2015 19:28:59 GMT
Enis Soztutar created HBASE-13479:

             Summary: [branch-1.0] Master should not bind to region server ports
                 Key: HBASE-13479
                 URL: https://issues.apache.org/jira/browse/HBASE-13479
             Project: HBase
          Issue Type: Sub-task
            Reporter: Enis Soztutar
            Priority: Blocker
             Fix For: 1.0.1

In parent jira, we have brought back old config value {{hbase.master.port}} and made it so
that if it is configured (which is by default), master does not bind to the region servers's
RPC and info ports now. We have realized that master binding to RS ports turns out to be a
pain point and unnecessary frustration for users (although we were expecting the opposite).

Let's use this jira to see what we can do in 1.0.x series. In 1.0.0, master binds to ports

In 1.0.x, we have a couple of options I think:
(a) don't do anything. 
(b) Commit patch from master as it is. All upgrades from 1.0.0 will observe changed ports.

(c) Commit the patch, disabled by default. If user has {{hbase.master.port}} set, bind to
the port. Only users who set the conf value will observe changed ports. 
(d) Commit the patch with an extra config option {{hbase.master.compat.mode}}. The users have
to explicitly enable this in 1.0. 

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